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- W2094071535 abstract "We present the relationship between the spatial arrangement and the photophysical properties of fluorescent polymers in thin films with controlled structures. Eight surfactant poly(p-phenyleneethynylene)s were designed and studied. These detailed studies of the behavior of the polymers at the air-water interface, and of the photophysical properties of their transferred LB films, revealed key structure-property relationships. Some of the polymers displayed pi-aggregates that are characteristic of an edge-on structure at the air-water interface. Monolayer LB films of these polymers showed greatly reduced quantum yields relative to solution values. Other polymers exhibited a highly emissive face-on structure at the air-water interface, and did not form pi-aggregates. The combination of pressure-area isotherms and the surface pressure dependent in situ UV-vis spectra of the polymers at the air-water interface revealed different behavioral details. In addition, the UV-vis spectra, fluorescence spectra, and quantum yields of the LB films provide design principles for making highly emissive films." @default.
- W2094071535 created "2016-06-24" @default.
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- W2094071535 date "2002-06-08" @default.
- W2094071535 modified "2023-10-02" @default.
- W2094071535 title "Structural Control in Thin Layers of Poly(<i>p</i>-phenyleneethynylene)s: Photophysical Studies of Langmuir and Langmuir−Blodgett Films" @default.
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- W2094071535 doi "https://doi.org/10.1021/ja0200600" @default.
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